Antiskidding device for automobiles.



A. HORMBL. K

ANTISKIDDING DEVICE PoR AUTOMGBILES.

APPLIOATION FILED NOV. 18, 1909.

Qg@ Patented 0@t.11,191o.

AUGUST HORMEL,

OF NEW YORK, N. Y.

ANTISKIDDING DEVICE FOR AUTOMOBILES.

Specification of Letters Patent.

Patented Oct. 11, 1916.

Application tiled November 18, 1909. Serial No..528,650.

To all whom it may con/cern:

Ene it known that l, A oci-sr HonMnL, a citizen of the United States, and a resident ot' Kew York city, lilanhattan, in the county ot Few `York and State of N ew York, have invented certain new and uset'ul improvements in Antiskidding Devices tor Automobiles, ot' which the tollowing is a specification.

This invention relates to improved means for preventing the skidding or swerving olf the rear wheels ot automobiles and similar vehicles. For this purpose, a trailer is suitably connected to the vehicle near the rear end thereof, the construction heilig such that a lateral movement ot tht` rear wheels will cause the trailer to be automatically forced against the ground, so as to eliiectively check saidAf-lateral movement'.

ln the accompanying drawing: Figure 1 is a` sectional side view of part olt an automobile embodying my invention, Fig. 2 a rear view, partly broken away. of Fig. 1, Fig. 3. a detail ot' the bracket, Fig. 4 a detail ot the trailer-actiniting lever, and Fig. 5 a view similar to Fig. 1showing a modified form of my invention.

'lhe rear axle 10 of the automobile, carrying driving wheels 11, is inclosed within a tubular casing 12, as usual. To the Ilatter is secured by clamp plates 1b', 14 and screws 15, a spring 16, the outer ends or" which are, by links 1T, connected to the automobile 18. Clamp plate 13 is shown to be provided wit". pair of alined bearings 19, 20, adapted tor the reception of a fixed arbor 21. acpon the latter 1s rotatably i two-arm lever 22, 23, the upper arm 22 ot which carries an antitriction roller is x engages ilshaped guide termediate bearings 19, 20 i Jpon arbor 21 are slidpair of arms 26 that straddle arms being connected to screw bolt 27. rllhe tree ends connected by an axle 28, abiy metallic friction y.nee oosely mounted. The iatter ...t at its circumference as `at S0 so as to permit the trailer to obtain a rin grip upon 'the supporting ground. [it their ei s 26 are further proeatending lugs 31, to

ens or springs 32 are sesprings are arms 211i t upon wl connected to a cross arm 33 forming part otl a pin or rod 34 Which is, by nuts 35, secured to thelower arm 23 of the lever hereinabove referred to.

F or controlling trailer 29. a hand lever 3G is pivoted to frame 18 which may be locked in position by a bolt 37 adapted to enter corresponding notches -38 of a fixed sector 39. To the lower arm 4() of hand lever 36 is fulcrumed at 41 one end of a sectional link 42, 43, the other end of which is pivoted to one of the arms 26 as at 44. Link section 42 is telescoped by a corresponding socket 45 of section 43, a spring 46 tending to contract parts 42, 43.

In lieu of pivotally connecting arms 26 to the casing 12 of the rear axle, said arms may be operatively connected to the frame 18 ot the automobile as illustrated i11.Fig.5. In this case a bracket 47 is, by bolts 48, secured to frame 18 said bracket having a V-shaped guide 49 that corresponds in all respects to the guide 25 shown in Figs. 1, 2 and 3. The remainder of the mechanism is constructed as above described. It will be seen that by tilting lever 3G ii the direction of the arrow (Fig. 1), the trailer may be raised ott' the ground so as to be rendered inoperative when there is no dangeroic skidding. lVhen the roads, however, are wet and slippery, lever 3V is tilted backward, so as to yieldingly torce trailer 29 against the ground owing to the interpolation of spring 4G between linkv sections 42, 48. lll/'hen wheels 11, swerve laterally, trailer 29 will not participate in this axial movement of vsaid wheels because its grooved surface insures a lirm grin on the ground. But as V-shaped guide 25 participates in the lateral movement of wheels 11, the upper arm 22 of lever 22, 23 will be swunir backward, thereby raising pin 34. Springs 32 being thus placed under tension, will tend to swing arms 26 forward and canse a corresponding longitudinal movement of the trailer, to increase the friction between trailer 29 and the supporting ground. ln this way, the resistance of the grooved trailer against lateral movement is increased, it being evident thatthe greater is the tendency of the rear wheels to swerve sidowise, the greater becomes the pressure with which the trailer is forced against the ground, so as to effectively check the objectionable skidding of the automobile.

l claim:

l. A device ot' the character described, comprising a vehicle body, a suspended trailer adapted to swing in a longitudinal direi-tion and laterally displaceab'le relatively to said body, and means for increasing the trictional contact between ground and trailer by such lateral displacement.

L). -t device ot' the character described, comprising a vehicle body, a suspended trailer adapted to swing in a longitudinal direction and laterally displaceable rela-` tively to said body, and means for pro- ,gressivelyA increasing the frictional Contact between ground and trailer by a progressive relative lateral displacement between body and trailer.

3. A device of the character described, comprising a vehicle body. an inclined guide carried thereby, a suspended trailer adapted to swing in a longitudinal direction and lat-- erally displaceable relatively to said body, and a member extending upwardly from the trailer into engagement with the inclined guide.

Ll. In a device of the character described, an arbor and a V-sliaped guide combined with a twoarm lever loosely embracing the arbor and engaging the guide, an arm loosely mounted on the arbor and carrying a trailer, and a spring interpolated between said lever and arm.

5. ln a device of the character described, an arbor and a V-shaped guide combined with a two-arm lever embracing the arbor and engaging the guide, a pair of arms loosely mounted on the arbor and straddling the lever, a trailer carried by the arms, lugs formed on the arms, and springs interpolated between tlie lever and said lugs.

ln a device of the character described. an arbor and a V-shaped guide combined with a two-arm lever loosely embracing the arbor and engaging the guide, a pair oi arms loosely mounted on the arbor and straddling thc lever, a trailer carried by the arms, lugs formed on the arms, a rod engaging the lever, a cross-arm integral with the rod, and springs interpolated between said cross-arm and lugs.

7. In a device of the character described, an arbor and a V-shaped guide combined with a two-arm lever loosely embracing the arbor and engaging the guide, an arm loosely mounted on the arbor and carrying a trailer, a spring interpolated between said lever and arm, and means for raising the arm.

8. In a device of the character described, an arbor and a V-sliaped guide combined with a twoarm lever loosely embracing the arbor and engaging the guide, an arm loosely mounted on the arbor and carrying a trailer. a spring interpolated between said lever and arm, a spring-influenced sectional link pivoted to the arm, and a hand lever fulcrurned to said link.

Signed at New York city, in the county of New York and State of New York this 16th day of November, A. D. 1909.

AUGUST HQRMEL.

Witnesses AMBRosE F. STOLZENBURGER, ARTHUR E. ZUMPE.

.ST Manset?. COPY 

